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Published in:
2015 | OriginalPaper | Chapter
Surface Alloying of Aluminum with Copper Using CO2 Laser
Authors : Woldetinsay G. Jiru, Mamilla R. Sankar, Uday S. Dixit
Published in: Lasers Based Manufacturing
Publisher: Springer India
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Abstract
Aluminium and its alloys have high demand in manufacturing and service industries due to their high specific strength. Addition of different metals like Cu, Mg, Ni, Cr, and Zn provides enhanced service life. In this work, commercially available 99 % pure aluminium was alloyed with copper powder of 10 μm particles size, which was melted by CO2 laser. Three different methods were used for uniform placing of 95 % copper powder and 5 % aluminium powder on the aluminium substrate. The result was examined by Vickers hardness test. SEM and FESEM were used for studying surface and subsurface defects. Defect free aluminium alloy with improved microstructure and enhanced mechanical properties was obtained.